<template>
  <!-- #ifdef APP-NVUE -->
  <text :style="{ color: color, 'font-size': iconSize }" class="uni-icons" @click="_onClick">{{ unicode }}</text>
  <!-- #endif -->
  <!-- #ifndef APP-NVUE -->
  <text :style="{ color: color, 'font-size': iconSize }" class="uni-icons"
        :class="['uniui-'+type,customPrefix,customPrefix?type:'']" @click="_onClick"/>
  <!-- #endif -->
</template>

<script>
import icons from './icons.js'
import iconUrl from './uniicons.ttf'

const getVal = (val) => {
  const reg = /^[0-9]*$/g
  return (typeof val === 'number' || reg.test(val)) ? val + 'px' : val
}
// #ifdef APP-NVUE
var domModule = weex.requireModule('dom')

domModule.addRule('fontFace', {
  'fontFamily': 'uniicons',
  'src': "url('" + iconUrl + "')"
})
// #endif

/**
 * Icons 图标
 * @description 用于展示 icons 图标
 * @tutorial https://ext.dcloud.net.cn/plugin?id=28
 * @property {Number} size 图标大小
 * @property {String} type 图标图案，参考示例
 * @property {String} color 图标颜色
 * @property {String} customPrefix 自定义图标
 * @event {Function} click 点击 Icon 触发事件
 */
export default {
  name: 'UniIcons',
  props: {
    type: {
      type: String,
      default: ''
    },
    color: {
      type: String,
      default: '#333333'
    },
    size: {
      type: [Number, String],
      default: 16
    },
    customPrefix: {
      type: String,
      default: ''
    }
  },
  emits: ['click'],
  data() {
    return {
      icons: icons.glyphs
    }
  },
  computed: {
    unicode() {
      const code = this.icons.find(v => v.font_class === this.type)
      if (code) {
        return unescape(`%u${code.unicode}`)
      }
      return ''
    },
    iconSize() {
      return getVal(this.size)
    }
  },
  methods: {
    _onClick() {
      this.$emit('click')
    }
  }
}
</script>

<style lang="scss">
/* #ifndef APP-NVUE */
@import './uniicons.css';

@font-face {
  font-family: uniicons;
  src: url('./uniicons.ttf') format('truetype');
}

/* #endif */
.uni-icons {
  font-family: uniicons;
  text-decoration: none;
  text-align: center;
}

</style>
